278520970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{727}}^1$

素因数の和:1175

約数の個数: 64

約数和(自身を含む): 619347456

約数和(自身を除く): 340826486

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 421, 455, 727, 842, 910, 1454, 2105, 2947, 3635, 4210, 5089, 5473, 5894, 7270, 9451, 10178, 10946, 14735, 18902, 25445, 27365, 29470, 38311, 47255, 50890, 54730, 66157, 76622, 94510, 132314, 191555, 306067, 330785, 383110, 612134, 661570, 1530335, 2142469, 3060670, 3978871, 4284938, 7957742, 10712345, 19894355, 21424690, 27852097, 39788710, 55704194, 139260485, 278520970]

約数ペア:

[(1, 278520970), (2, 139260485), (5, 55704194), (7, 39788710), (10, 27852097), (13, 21424690), (14, 19894355), (26, 10712345), (35, 7957742), (65, 4284938), (70, 3978871), (91, 3060670), (130, 2142469), (182, 1530335), (421, 661570), (455, 612134), (727, 383110), (842, 330785), (910, 306067), (1454, 191555), (2105, 132314), (2947, 94510), (3635, 76622), (4210, 66157), (5089, 54730), (5473, 50890), (5894, 47255), (7270, 38311), (9451, 29470), (10178, 27365), (10946, 25445), (14735, 18902)]